This sliding block puzzle is one of
the simplest of its kind, and consists of only seven
domino-like tiles with three big digits depicted on them
as shown above. Every tile can slide to an adjacent free
space.

Puzzle 1. Reach the position of the digits on the tiles
as shown in the small diagram, Goal 1.
Puzzle 2. Reach the position of the digits on the tiles
as shown in the small diagram, Goal 2. You can do that
either from the start position, or from Goal 1.

To move a tile, simply click it. Use "Undo" and "Redo"
for the respective backward and forward moves of tiles
along your solution. Once you solve the puzzle, or have
some particular sequence of moves, you can use "Undo"
and "Redo" to check all your moves. Use "Restart" to
start the puzzle over again.